LQR2W392MSEHBB

The LQR2W392MSEHBB is an aluminum electrolytic capacitor in a screw-terminal, radial can package designed for high-voltage power electronics. It provides 3.9 mF capacitance at a 450 V rating with polarized construction and a rated operating range of −25 °C to +85 °C.

Engineered for high-frequency regenerative voltage and fluctuating-voltage environments, this part is suited to general inverters, AC servomotor regenerative circuits and rectifier circuits such as voltage doublers. The device is RoHS compliant and built for long endurance under rated conditions.

Key Features

• High Voltage & Capacitance — 3.9 mF nominal capacitance at a 450 V rated voltage for significant energy buffering in high-voltage power stages.
• Screw Terminal, Radial Can Package — Robust screw-terminal connections for secure, low-impedance power wiring in industrial assemblies.
• Temperature and Endurance — Rated for −25 °C to +85 °C with endurance specified as 5000 hours at 85 °C under D.C. bias plus rated ripple current.
• High-Speed Charge–Discharge Capability — Designed for 85 °C high-speed charge–discharge applications and endurance over charge–discharge cycles (20 million cycles at ΔV = rated × 0.3, 3 Hz).
• Ripple Current Performance — Ripple current handling up to 14.1 A at 120 Hz and 19.74 A at 10 kHz for demanding AC and regenerative loads.
• Low-Temperature Stability — Impedance characteristic specified with Z(−25 °C) / Z(+20 °C) up to 8, helping preserve performance in cold starts.
• Leakage and Loss-Angle Limits — Leakage current limited to 3√V μA or 5 mA (whichever is smaller) after 5 minutes at 20 °C, with tan δ requirements and specified limits after endurance testing.
• RoHS Compliance — Conforms to RoHS directive requirements (2011/65/EU, (EU)2015/863).

Typical Applications

• Inverter & Motor Drive Systems — Energy buffering and regenerative voltage handling for general inverters and AC servomotor regenerative circuits.
• Rectifier / Voltage Doubler Circuits — Suitable for rectifier stages and voltage doubler configurations requiring high-voltage capacitance.
• Industrial Equipment in Fluctuating Voltage Environments — Robust performance where supply voltages vary, helping stabilize DC bus and absorb transient energy.

Unique Advantages

• High energy storage at high voltage: 3.9 mF at 450 V provides substantial stored energy for DC bus stabilization and regenerative capture.
• Secure power connections: Screw-terminal radial can package enables reliable mechanical and electrical connection for high-current power lines.
• Designed for repeated charge–discharge: Specified endurance for 20 million charge–discharge cycles supports applications with frequent energy reversals.
• High ripple-current capability: Rated ripple currents of 14.1 A (120 Hz) and 19.74 A (10 kHz) allow usage in both low- and high-frequency power stages.
• Operational durability: Specified 5000 hours at 85 °C under rated conditions demonstrates long-term stability in elevated-temperature power environments.
• Regulatory compliance: RoHS conformity simplifies environmental compliance for overall system design.

Why Choose LQR2W392MSEHBB?

The LQR2W392MSEHBB combines high capacitance and 450 V rating in a screw-terminal aluminum electrolytic package targeted at industrial power electronics. Its defined ripple current ratings, temperature range, and endurance characteristics make it a solid choice for inverter, motor drive and rectifier applications where regenerative energy and fluctuating voltages are present.

Designed and manufactured by Nichicon, this capacitor is aimed at engineers and procurement teams building robust power systems that require verified endurance, predictable leakage behavior, and reliable high-voltage energy storage.

Request a quote or contact sales to discuss availability, lead times and any application-specific requirements for the LQR2W392MSEHBB.